Proximity fuze jammer

Details Proximity fuze jammer Proximity fuze jammer

1969-12-16

1978-10-17

Hubler, Malcolm F.

Communications: radio wave antennas

Antennas

Balanced doublet - centerfed

343 7PF, G01S 738, H04K 300

Patent

active

041212142

ABSTRACT:
A system for jamming continuous wave radar type proximity fuzes used on surface-to-air missiles where the fuze requires an increase in return signal power level and a rapid frequency change for detonation. The system basically includes a receiver, amplifier, and transmitter. A received fuze signal is filtered and square wave modulated then sent to a first traveling wave tube for amplification. The signal is then amplified again by a second traveling wave tube which is modulated by a transit time modulator which continuously varies the phase shift through the tube in a linear fashion. The linear variation in phase shift is the equivalent of a displacement in the frequency signal being amplified. The signal is then reradiated to the missile giving the fuze a target sensing causing it to predetonate.

REFERENCES:
patent: 3149284 (1964-09-01), Kishinsky
patent: 3375515 (1968-03-01), Novikoff
patent: 3504366 (1970-03-01), Tolles et al.

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